Dicentra Plant Named &#39;HORDIVAL&#39;

ABSTRACT

A new and distinct  Dicentra spectabilis  cultivar named ‘Hordival’ is disclosed, characterized distinctive orange-red flowers, dark stems overall compact, shorter plants. The new variety is a  Dicentra spectabilis , suitable for outdoor landscape and container use.

LATIN NAME OF THE GENUS AND SPECIES

Dicentra spectabilis

VARIETY DENOMINATION

‘HORDIVAL’

BACKGROUND OF THE INVENTION

The new cultivar is the result of a chance discovery in a garden in Prince George, British Columbia, Canada. The inventors, Lyle and Phyllis Sarrazin, citizens of Canada, discovered the new variety as a naturally occurring chance seedling growing in a garden of the parent variety, the unpatented Dicentra spectabilis. The discovery was made in the Spring of 2005.

After selecting and isolating the new cultivar, asexual reproduction of the new cultivar ‘HORDIVAL’ was first performed by division during the Fall of 2005, in Prince George, British Columbia. ‘HORDIVAL’ has since produced several generations and has shown that the unique features of this cultivar are stable and reproduced true to type.

SUMMARY OF THE INVENTION

The cultivar ‘HORDIVAL’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, day length, and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘HORDIVAL.’ These characteristics in combination distinguish ‘HORDIVAL’ as a new and distinct Dicentra cultivar:

1. Dark Orange-Red flower.

2. Distinctive red stems.

3. Compact and overall shorter plant habit.

PARENTAL COMPARISON

Plants of the new cultivar ‘HORDIVAL’ are similar to the parent, in most horticultural characteristics. However, ‘HORDIVAL’ differs in having n over all more compact and shorter plant habit.

COMMERCIAL COMPARISON

Plants of the new cultivar ‘HORDIVAL’ are best compared to the parent variety.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph in FIG. 1 illustrates in full color a typical plant of ‘HORDIVAL’ grown outdoors in the Netherlands This plant is approximately 1 year old. The photograph was taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart except where general terms of ordinary dictionary significance are used. The following observations and measurements describe ‘HORDIVAL’ plants grown outdoors in De Hoef, the Netherlands. Temperatures ranged from Approximately −10° C. to 30° C. day and night. No artificial light, photoperiodic treatments or chemical treatments were given to the plants. Measurements and numerical values represent averages of typical plant types.

-   Botanical classification: Dicentra spectabilis ‘HORDIVAL’ -   Age of the plant described: Approximately 18 months -   Container size of the plant described: 17 cm commercial container.

DETAILED BOTANICAL DESCRIPTION PROPAGATION

-   Time to initiate roots: Typically propagated outdoors, from March to     May. Root initiation takes approximately 10 days, with full rooting     within 14 days. -   Root description: Moderately dense, thin, slightly fleshy, slightly     fibrous, coloured near RHS Grey-Brown 199D

PLANT

-   Growth habit: Broad inverted triangle. -   Pot size of plant described: 17 cm. -   Height: Average: 33.8 cm. -   Plant spread: Average: 35.9 cm. -   Growth rate: Moderately high -   Branching characteristics: Basal branching with stem leaves and     axillary and terminal racemes -   Length of primary lateral branches: Average: 23.9 cm (excl.     inflorescence). -   Quantity of primary lateral branches: Average: 6. -   Characteristics of primary lateral branches:     -   -   Form.—Rounded, slightly angled.         -   Diameter.—Average: 0.5 cm.         -   Color.—Near RHS Grey-Brown 200B, slightly tinged RHS             Greyed-Green 197A.         -   Texture.—Smooth, dull due to a waxy layer.         -   Strength.—Moderately weak. -   Internode length: Average: 5.3 cm.

FOLIAGE

-   Leaf:     -   -   Arrangement.—Alternate. -   Leaves:     -   -   Shape.—Compound, biternate (broad ovate in outline).         -   Quantity.—Approximately 9 per branch.         -   Average length.—14.6 cm.         -   Average Width.—9.4 cm. -   Individual leaf blades (leaflets):     -   -   Shape of blade.—Trifoliate (obovate to orbicular in             outline).         -   Apex.—Apiculate.         -   Base.—Short attenuate.         -   Margin.—Coarsely serrate.         -   Texture of top surface.—Smooth, very slightly glossy.         -   Pubescence.—No.         -   Aspect.—Leaf blades slightly concave, leaflets slightly             drooping in an average angle of −20° (0°=horizontal).         -   Color.—Young foliage upper side: Near RHS Yellow-Green 144B             Young foliage under side: Near RHS Yellow-Green 145A Mature             foliage upper side: Near RHS Green 137B Mature foliage under             side: Near RHS Yellow-Green 147B, slightly tinged             Greyed-Purple 183D.         -   Venation.—Type: Pinnate Venation color upper side: Near RHS             Greyed-Red 182A Venation color under side: Near RHS             Greyed-Purple 183B.         -   Petiole.—Length: Average 9.4 cm. Diameter: Average 0.3 cm.             Color: Near RHS Greyed-Orange 177A Texture: Smooth, dull due             to a waxy layer.         -   Stipule description (if present).—No stipules present.

FLOWER

-   Natural flowering season: Spring -   Days to flowering from a rooted plantlet: Sparse initial flowering     several weeks after rooting. Full flowering after plants are 1 year     old, starting in March. -   Inflorescence and flower type and habit: Individual flowers in     axillary and terminal racemes -   Rate of flower opening: 5 to 8 days from bud to fully opened flower. -   Flower longevity on plant: Average: one week -   Persistent or self-cleaning: Self-cleaning -   Bud:     -   -   Shape.—Obovate.         -   Length.—1.0 cm.         -   Diameter.—0.3 cm.         -   Color.—Near RHS Yellow-Green 152C. -   Flower size:     -   -   Diameter.—At widest: 2.1 cm; at narrowest: 0.8 cm.         -   Depth.—2.7 cm.         -   Aspect.—Drooping, in an average angle of −20°             (0°=horizontal). -   Tepals:     -   -   Quantity.—4.         -   Arrangement.—2 oppositely placed pairs of similar tepals.         -   Length.—Two narrowest tepals average: 2.2 cm. Two widest             tepals average: 1.8 cm.         -   Width.—Narrowest tepal average: 0.35 cm. Widest tepal             average: 1.0 cm.         -   Shape.—Narrowest tepals lanceolate, fused at the tips.             Widest tepals orbicular, but folded.         -   Apex.—All tepals have an acute apex.         -   Base.—All tepals have a cuneate base.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Dull, smooth,             non-pubescent. -   Color:     -   -   When opening, upper surface.—Narrowest tepal; Near RHS White             N155D, base near RHS Greyed-Purple 187A. Widest tepal; near             RHS Red 54C, tip darker; 54B, outer tip Yellow-Green 148A.         -   When opening, lower surface.—Narrowest tepal; near RHS White             N155D, Base near RHS Greyed-Purple 187A. Widest tepal; RHS             Red 55C, tip Yellow-Green 148B.         -   Fully opened, upper surface.—Narrowest tepal; RHS White             N155D, base RHS Greyed-Purple 187A. Widest tepal; RHS Red             54C, tip darker; 54B, outer tip Yellow-Green 148A.         -   Fully opened, lower surface.—Narrowest tepal; RHS White             N155D, base RHS Greyed-Purple 187A. Widest tepal; RHS Red             55C, tip Yellow-Green 148B. -   Bracts (if present): No bracts present -   Sepals: No separate petals and sepals present, only tepals (see     above) -   Peduncles:     -   -   Length.—9.4 cm.         -   Diameter.—0.2 cm.         -   Angle.—About 45° to the lateral branch.         -   Strength.—Moderate.         -   Texture.—Smooth, dull due to a waxy layer.         -   Color.—Near RHS Brown 200A, tinged Greyed-Purple N186C. -   Pedicels:     -   -   Length.—1.1 cm.         -   Diameter.—0.05 cm.         -   Angle.—About 45° to the peduncle, = about 90° to the lateral             branch.         -   Strength.—Moderate.         -   Texture.—Smooth, dull due to a waxy layer.         -   Color.—Near RHS Brown 200B. -   Fragrance: No fragrance.

REPRODUCTIVE ORGANS

-   Stamens:     -   -   Number.—6, fused in two groups of three, one on each side of             the ovary, covered by the two narrowest tepals. -   Anthers:     -   -   Shape.—Anthers basifixed, narrow oblong, filament curved,             following the shape of the narrowest tepals.         -   Length.—Anthers approximately 0.1 cm. Filaments             approximately 2.0 cm.         -   Color.—Anther: Near RHS Yellow 12A Filaments: Near RHS Red             56D.         -   Pollen.—Color: Near RHS Yellow 11 B Quantity: Moderate. -   Pistil:     -   -   Number.—1.         -   Length.—1.9 cm.         -   Style.—Length: 1.0 cm. Color: Near RHS Yellow-Green 145B.         -   Stigma.—Shape: Umbraculate Color: Near RHS Yellow-Green 153D             Ovary Color: Near RHS Yellow-Green 145A.

OTHER CHARACTERISTICS

-   Seeds and fruits: Not observed to date. -   Disease/pest resistance: Neither resistance nor susceptibility to     normal diseases and pests of Dicentra has been observed. -   Temperature tolerance: The new variety tolerates low temperatures to     at least USDA Zone 4, and has been observed to tolerate high     temperatures to 35° C. 

1. A new and distinct cultivar of Dicentra a plant named ‘Hordival’ as herein illustrated and described. 